8639000

素因数分解:

$2^3\times 5^3\times {\mathrm{53}}^1\times {\mathrm{163}}^1$

素因数の和:237

約数の個数: 64

約数和(自身を含む): 20723040

約数和(自身を除く): 12084040

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 53, 100, 106, 125, 163, 200, 212, 250, 265, 326, 424, 500, 530, 652, 815, 1000, 1060, 1304, 1325, 1630, 2120, 2650, 3260, 4075, 5300, 6520, 6625, 8150, 8639, 10600, 13250, 16300, 17278, 20375, 26500, 32600, 34556, 40750, 43195, 53000, 69112, 81500, 86390, 163000, 172780, 215975, 345560, 431950, 863900, 1079875, 1727800, 2159750, 4319500, 8639000]

約数ペア:

[(1, 8639000), (2, 4319500), (4, 2159750), (5, 1727800), (8, 1079875), (10, 863900), (20, 431950), (25, 345560), (40, 215975), (50, 172780), (53, 163000), (100, 86390), (106, 81500), (125, 69112), (163, 53000), (200, 43195), (212, 40750), (250, 34556), (265, 32600), (326, 26500), (424, 20375), (500, 17278), (530, 16300), (652, 13250), (815, 10600), (1000, 8639), (1060, 8150), (1304, 6625), (1325, 6520), (1630, 5300), (2120, 4075), (2650, 3260)]